SECO-LARM SK-2323-SDQ Mullion-Style Weatherproof Digital Access Keypad; 12~24 VAC/VDC operation; 1,010 Users (Output #1: 1,000 users/Output #2:&nbsp;10 users); 2 Form C relays, each rated&nbsp;1 Amp @ 30VDC; Each relay has programmable output time from 1~99 seconds&nbsp;or toggle Each relay has programmable output time from 1~99 secondsor toggle Output #2 can be programmed for use witha doorbell, 2 Egress inputs and 1 door sensor input Backlit keys for easy nighttime use, 2 Multi-colored status LEDs EEPROM memory protects programmed information in case ofpower loss Optical tamper sensor for added security, Circuitry is potted with epoxy foroutdoor use